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Free calculator
The numbers,
side by side.
Compare two package offers using your own inputs. Sample values below are hypothetical, not retailer quotes.
First offer
Pack A
Second offer
Pack B
JavaScript is needed for the live calculation. Divide pack price by sealed-unit count for cost per unit; divide that result by mL per unit for cost per mL.
What the calculator does
It divides the total price by the number of sealed units. It then divides cost per unit by the volume of each unit. Values are displayed to up to four decimal places to make small differences visible. No price is fetched from a retailer.
What to compare separately
Exact intended use, concentration, pack format and label requirements remain separate checks. A favorable cost result is not a clinical recommendation or proof that two products can substitute for each other.
Inputs stay in this page and are not transmitted or saved. Read our privacy note.